88 citations · 640 across the 28 of their papers we have counts for
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The empty ring galaxy ESO 474 - G040
Noah Brosch, Petri Vaisanen, Alexei Kniazev +1
We describe observations of the apparently empty ring galaxy ESO 474-G040 obtained with the Southern African Large Telescope (SALT). The observations, consisting of imaging, long-s…
Kinematics And Stellar Population In Isolated Lenticular Galaxies
Ivan Yu. Katkov, Alexei Yu. Kniazev, Olga K. Sil'chenko
By combining new long-slit spectral data obtained with the Southern African Large Telescope (SALT) for 9 galaxies with previously published our observations for additional 12 galax…
The stellar populations in the low luminosity, early-type galaxy NGC59
A. E. Sansom, J. J. Thirlwall, M. A. Deakin +3
Low luminosity galaxies may be the building blocks of more luminous systems. Southern African Large Telescope (SALT) observations of the low luminosity, early-type galaxy NGC59 are…
WS1: one more new Galactic bona fide luminous blue variable
A. Y. Kniazev, V. V. Gvaramadze, L. N. Berdnikov
In this Letter, we report the results of spectroscopic and photometric monitoring of the candidate luminous blue variable (LBV) WS1, which was discovered in 2011 through the detect…
The Closest Known Flyby of a Star to the Solar System
Eric E. Mamajek, Scott A. Barenfeld, Valentin D. Ivanov +4
Passing stars can perturb the Oort Cloud, triggering comet showers and potentially extinction events on Earth. We combine velocity measurements for the recently discovered, nearby,…